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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. int main(){
  5.     int i,j,k;
  6.     int a,b;
  7.     int **mat;
  8.     scanf("%d %d",&a,&b);
  9.  
  10.     mat = (int **)malloc(sizeof(int *) * a);
  11.     for(i = 0; i < a; i++){
  12.         mat[i] = (int *)malloc(sizeof(int) * b);
  13.     }
  14.  
  15. 	for(i = 0; i < a; i++){
  16.         for(j = 0; j < b; j++){
  17.             mat[i][j] = k++;
  18.         }
  19.     }
  20.  
  21.     for(i=0;i<a;i++){
  22.         for(j=0;j<b;j++){
  23.             printf("%d ",mat[i][j]);
  24.         }
  25.         printf("\n");
  26.     }
  27.  
  28.     for(i = 0; i < a; i++){
  29.         free(mat[i]);
  30.     }
  31.     free(mat);
  32.  
  33.     return 0;
  34. }
Success #stdin #stdout 0s 5308KB
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stdin
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stdout
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https://ideone.com/5po1pw
language:
C (gcc 8.3)
created:
8 hours ago
visibility:
public

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